a-21.de - robtex.com
a-21.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:238:20a:202:1070::🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.70🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| NS | shades07.rzone.de ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:34:134🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades07.rzone.de | ||||||
| A | 185.132.34.134🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades07.rzone.de | ||||||
| NS | docks12.rzone.de | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:12🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks12.rzone.de | ||||||
| A | 217.160.80.139🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks12.rzone.de | ||||||
| MX | smtpin.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| SOA | shades07.rzone.dehostmaster@strato-rz.de 2020-05-25 #89 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1774571191 | ||||||
Same first word
DNS History
5 records (5 active, 0 former)
●A2a01:238:20a:202:1070::2015-08-17 → 2026-03-27 · 2 obs
● 2026-03-27 00:50:50
●A81.169.145.702015-08-17 → 2026-03-27 · 2 obs
● 2026-03-27 00:50:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| a-21.de | shades07.rzone.de, docks12.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.134
NS records: shades07.rzone.de, docks12.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-21.de (unsigned zone)
⏱️ Timing
Total: 1443ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.70 |
| AAAA | 1 | 2a01:238:20a:202:1070:: |
| NS | 2 | shades07.rzone.de, docks12.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| SOA | 1 | shades07.rzone.de hostmaster.strato-rz.d |
Analysis
IP Addresses
a-21.de points to two IPs: 2a01:238:20a:202:1070:: and 81.169.145.70.
Other host names including nbh-erding.de, stnkr.de, nlo.de, olivierdevries.com and to-wi.com share IP numbers with a-21.de.
Name Servers
a-21.de's delegation uses two name servers, docks12.rzone.de and shades07.rzone.de.
a-21.de shares the same name server setup as other domains, for example speedlite.de, willow.nl, disenosaurio.com, roof-planer.com and ostseeurlaub-seepferdchen.de.
a-21.de at least partially shares name servers with other domains, including kioto.dog, xpeedom.de, rudolf-voss.de, stressmonitor.de and syno.support.
These name servers are typically used together with the name servers shades19.rzone.de, docks19.rzone.de, docks11.rzone.de, docks13.rzone.de, docks02.rzone.de, docks01.rzone.de, shades12.rzone.de, shades18.rzone.de, shades09.rzone.de and shades13.rzone.de.
Host names with two IPs:
docks12.rzone.de points to: 2001:8d8:fe:53:5747:2a74:d:12 and 217.160.80.139
shades07.rzone.de points to: 2607:f1c0:fe:53:185:132:34:134 and 185.132.34.134
Mail Servers
a-21.de is handled by a single mail server, smtpin.rzone.de.
a-21.de shares its mail server setup with other domains, including vinoundveritas.de, mankau.com, homo-denkmal.de, sdsoft.info and deist-project.org.
smtpin.rzone.de points to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.